# Copyright (C) 2025 Kumo inc.
# Author: Jeff.li lijippy@163.com
# All rights reserved.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <https:#www.gnu.org/licenses/>.
#
# distutils: language = c++

from libcpp.string cimport string
from libcpp.pair cimport pair
from libcpp cimport unordered_map
from flat_hash_map cimport CFlatHashMap
from libcpp.memory cimport unique_ptr

cdef class FlatHashMap:
    cdef unique_ptr[CFlatHashMap[int, string]] c_map

    def __cinit__(self):
        self.c_map.reset(new CFlatHashMap[int, string]())

    def __setitem__(self, int key, string value):
        self.c_map.get().insert(pair[int, string](key, value))

    def __getitem__(self, int key):
        if not self.c_map.get().count(key):
            raise KeyError(f"Key {key} not found")
        return self.c_map.get().at(key)

    def __len__(self):
        return self.c_map.get().size()

    def __contains__(self, int key):
        return self.c_map.get().count(key) > 0
